/,el es 'di:; ,ɛl ɛs `di/
abbr 缩写 =
1 (also sl 俚语作 acid) lysergic acid diethylamide, a powerful drug that produces hallucinations 麦角　二乙基酸胺（一种迷幻药）.
2 (also sd) (dated Brit infml 旧, 口) (in former British currency) pounds, shillings and pence (Latin librae, solidi, denarii); money （旧时英国货币）镑, 先令, 便士（源自拉丁文librae、solidi、denarii）; 钱
*I'm rather short of LSD can you lend me some? 我缺点儿钱, 你能借给我一些吗?

n[U]
[Date: 1900-2000; Origin: lysergic acid diethylamide]
an illegal drug that makes you see things as more beautiful, strange, frightening etc than usual, or makes you see things that do not exist
= acid